520497 has 12 divisors (see below), whose sum is σ = 758784. Its totient is φ = 343800.

The previous prime is 520451. The next prime is 520529. The reversal of 520497 is 794025.

It is not a de Polignac number, because 520497 - 2⁶ = 520433 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 520497.

It is not an unprimeable number, because it can be changed into a prime (520427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1168 + ... + 1550.

It is an arithmetic number, because the mean of its divisors is an integer number (63232).

2⁵²⁰⁴⁹⁷ is an apocalyptic number.

It is an amenable number.

520497 is a deficient number, since it is larger than the sum of its proper divisors (238287).

520497 is a wasteful number, since it uses less digits than its factorization.

520497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540 (or 537 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 520497 is about 721.4547802877. The cubic root of 520497 is about 80.4401262539.

It can be divided in two parts, 5 and 20497, that added together give a palindrome (20502).

The spelling of 520497 in words is "five hundred twenty thousand, four hundred ninety-seven".